Alexandre Julliard : kernel32: Fix handling of LOAD_WITH_ALTERED_SEARCH_PATH when other search flags are specified.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0d9d816fc352a556f1d00fde5a5e0e52e35e1ddb
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=0d9d816fc352a556f1d00fde5a5e0e52e35e1ddb

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Wed Jun  5 21:01:34 2019 +0200

kernel32: Fix handling of LOAD_WITH_ALTERED_SEARCH_PATH when other search flags are specified.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46809
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/kernel32/module.c       | 13 +++++++++++--
 dlls/kernel32/tests/module.c | 25 +++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/dlls/kernel32/module.c b/dlls/kernel32/module.c
index 1ea7b0e..386a7c2 100644
--- a/dlls/kernel32/module.c
+++ b/dlls/kernel32/module.c
@@ -941,11 +941,20 @@ static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags )
     const DWORD unsupported_flags = (LOAD_IGNORE_CODE_AUTHZ_LEVEL |
                                      LOAD_LIBRARY_REQUIRE_SIGNED_TARGET);
 
-    if (!(flags & load_library_search_flags)) flags |= default_search_flags;
-
     if( flags & unsupported_flags)
         FIXME("unsupported flag(s) used (flags: 0x%08x)\n", flags);
 
+    if (flags & LOAD_WITH_ALTERED_SEARCH_PATH)
+    {
+        if (flags & load_library_search_flags)
+        {
+            SetLastError( ERROR_INVALID_PARAMETER );
+            return 0;
+        }
+        if (default_search_flags) flags |= default_search_flags | LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR;
+    }
+    else if (!(flags & load_library_search_flags)) flags |= default_search_flags;
+
     if (flags & load_library_search_flags)
         load_path = get_dll_load_path_search_flags( libname->Buffer, flags );
     else
diff --git a/dlls/kernel32/tests/module.c b/dlls/kernel32/tests/module.c
index c059b98..a8cdc3d 100644
--- a/dlls/kernel32/tests/module.c
+++ b/dlls/kernel32/tests/module.c
@@ -565,6 +565,31 @@ static void test_LoadLibraryEx_search_flags(void)
         mod = LoadLibraryExA( path, 0, LOAD_LIBRARY_SEARCH_SYSTEM32 );
         ok( mod != NULL, "LoadLibrary failed err %u\n", GetLastError() );
         FreeLibrary( mod );
+
+        SetLastError( 0xdeadbeef );
+        mod = LoadLibraryExA( "winetestdll.dll", 0, LOAD_LIBRARY_SEARCH_APPLICATION_DIR | LOAD_WITH_ALTERED_SEARCH_PATH );
+        ok( !mod, "LoadLibrary succeeded\n" );
+        ok( GetLastError() == ERROR_INVALID_PARAMETER, "wrong error %u\n", GetLastError() );
+
+        SetLastError( 0xdeadbeef );
+        mod = LoadLibraryExA( "winetestdll.dll", 0, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_WITH_ALTERED_SEARCH_PATH );
+        ok( !mod, "LoadLibrary succeeded\n" );
+        ok( GetLastError() == ERROR_INVALID_PARAMETER, "wrong error %u\n", GetLastError() );
+
+        SetLastError( 0xdeadbeef );
+        mod = LoadLibraryExA( "winetestdll.dll", 0, LOAD_LIBRARY_SEARCH_SYSTEM32 | LOAD_WITH_ALTERED_SEARCH_PATH );
+        ok( !mod, "LoadLibrary succeeded\n" );
+        ok( GetLastError() == ERROR_INVALID_PARAMETER, "wrong error %u\n", GetLastError() );
+
+        SetLastError( 0xdeadbeef );
+        mod = LoadLibraryExA( "winetestdll.dll", 0, LOAD_LIBRARY_SEARCH_DEFAULT_DIRS | LOAD_WITH_ALTERED_SEARCH_PATH );
+        ok( !mod, "LoadLibrary succeeded\n" );
+        ok( GetLastError() == ERROR_INVALID_PARAMETER, "wrong error %u\n", GetLastError() );
+
+        SetLastError( 0xdeadbeef );
+        mod = LoadLibraryExA( "winetestdll.dll", 0, LOAD_LIBRARY_SEARCH_USER_DIRS | LOAD_WITH_ALTERED_SEARCH_PATH );
+        ok( !mod, "LoadLibrary succeeded\n" );
+        ok( GetLastError() == ERROR_INVALID_PARAMETER, "wrong error %u\n", GetLastError() );
     }
 
     SetCurrentDirectoryA( curdir );